我就是上传备用域名的证书 然后证书管理那里都正常识别了证书有效期 但是选择那个证书过后 还是提示证书问题 或者CNAME的DNS有问题 错误提示这个com.amazonaws.services.cloudfront.model.CNAMEAlreadyExistsException: One or more aliases specified for the distribution includes an incorrectly configured DNS record that points to another CloudFront distribution. You must update the DNS record to correct the problem. For more information, see https://docs.aws.amazon.com/AmazonCloudFront/latest/DeveloperGuide/CNAMEs.html#alternate-domain-names-restrictions (Service: AmazonCloudFront; Status Code: 409; Error Code: CNAMEAlreadyExists; Request ID: 8369ed1e-6ee0-4855-bb65-623c8e65169a; Proxy: null)